Charles f



(ModeL) O. P.- POWERS. Tile Pacing and Squaring Machine.

No. 228,929. Patented June 15,1880.

UNITED STATES ATENT OFFICE.

CHARLES F. POWERS, OF SUTHERLAND FALLS, VERMONT, ASSIGNOR TO HIMSELF AND SUTHERLAND FALLS MARBLE COMPANY, OF SAME PLACE.

TILE FACING AND SQUARING MACHINE.

SPECIBIOATION forming part of Letters Patent No. 228,929, dated June 15, 1880.

- Application filed April 19, 1880. (Modeh) To all whom it may camera:

Be it known'that I, CHARLES F. POWERS, ofSutherland Falls, in the county of Rutland and State of Vermont, have invented a new and Improved Tile Facing and Squaring Machine, of which the following is a specification.

The object of this invention is to provide a machine to level and smooth by rubbing the faces and edges of several tiles at a time.

The invention consists of revolving frames for holding and adjusting the tiles upon a rubbing-bed or grinding plate ordisk of any kind, and of novel devices for removing and replacing a tile without interfering with the work on the others.

Figure 1 is a front elevation of the device, partly in section. Fig. 2 is a sectional plan of the same on line 00 m, Fig. 1. Fig. 4. is an enlarged plan of the reverse'of a tile-facing holder. Fig. 3 is an enlarged cross-section of a facing-holder, showing its mode of attachment to the shaft.

Similar letters of reference indicate correspondin g parts.

In thedrawings, A represents a horizontal timber supporting the vertical shaft 13, which is stepped in the box a and has on its upper end a driving-pulley, b. Fixed centrally on this shaft B, and resting on its shoulder 0, just above its step a, is the rubbing plate or disk 0, which is made to revolve by power applied to the pulley b, or by gears or any other method. Adjustably suspended from the timber A, on one side of this shaft B, is a shaft, D, on which shaft D is a cylindrical frame, D, consisting of two horizontal disks or hubs, E E, set at some distance apart from each other; or, in lieu of thesehubs E E, spiders with two or more radial arms may be used, and held together by vertical rods F F. Passing vertically down through these hubs E E, and revolving in said hubs, are the shafts F F, set in a circle around the shaft D, having secure-(lion theirglower'iends, by universal joint 0, the horizontal facing-holders G, which holders G are provided on their lower faces with short sharp projecting pins or studs (1, to enable them to better hold the tiles and prevent them from slipping, the joints '0 permitting said plates or holders G to adjust themselves to the uneven surfaces of the tiles.

The ends of theshafts F F, above the disk or hub E, are shouldered, as shown at f, to afford a hold for the ends of the levers H, that are fulcrumed in the lugs g, that are fixed upon the top of the said disk or hub E. The upper and free ends of said leversH are bent up at right angles, as shown at h, so that said levers H may be readily engaged by the lever K, that is pivoted on the shaft D above the said disk or hul') E, moves in the slotted hanger or guide h, and is held up in position by the spring L, that depends from the timber A. A red, K, attached to the outer end of this lever K, connects with the treadle K that is secured on the floor below the device within easy reach of the operator.

M M represent the tiles in position for being faced, they being held flat on the upper surface of the plate 0 by the facing-holders Gr.

When the rubbing or grinding plate 0 is put in motion the tiles M are pressed upon the upper surface of the said plate with any desired pressure by the weights F, that are secured upon the shafts F about midway of their length, the said tiles M being firmly held by the pins d of the holders Gr. As the disk or plate 0 revolves against the faces of the said tiles M, the consequent friction between the bed 0 and the tiles M causes each one of the shafts F F and the tile thereto attached to revolve on its own axis, and the universal joints 0 allow the tiles to adjust and adapt themselves to any irregularities that may exist either on their own faces or on the face of the rubbing-plate, and also cause the frame D to revolve on the fixed shaft D, whereby the tiles M are subjected to three rubbing motions. When it is desired to remove any one of the tiles the operator, by pressing his foot upon the treadle Ki, presses down the lever Kupon the lever 11, that is attached to the head of the shaft F, which carries on its lower end the tile to be removed. By thus pressing down upon the long arm of alever, H, its respective shaft F is raised vertically, lifting with it the tile-holder, so that the said tile can be removed and replaced without interfering with the work upon the others.

On the opposite side of the shaft B the shaft N is adjustably suspended from the timber A, which shaft N supports on its lower end a rectangular frame, 0, that is designed to carry the tiles whose edges are to be squared. In the vertically i adjustable recessed sides m of this frame the tiles P are placed edge downward, and held in position with their lower edges in contact with the grinding or rubbing disk or plate 0 by the set-screw a, that passes through the cross-bars 0, which are fastened horizontally across the fronts of the said recessed sides m.

The edges of the tiles 1? are squared by the rubbing against them of the revolving plate or disk 0 and by the consequent revolution of the frame 0. Sand and water are thrown upon the plate or disk C to assist in the operations of facing and squaring the tiles.

A lever, Q, pivoted on the shaft N, moving in the slotted hanger or guide .9, and supported by the spiral spring Q, may be operated in the same manner as the corresponding lever in the facing device to press upon the levers It, which are fulcrumed in the lug p on top of the frame 0, in order to lift, by means of its pin q, either of the recessed sides m, and with the said recessed side m the tile P, that is secured therein, so that the said tile 1? may be withdrawn and another edge of the tile may be presented to the grinding or rubbing plate or disk, or a new tile put in, without interfering With the work upon other tiles.

The frames D and 0 may, if desirable, be revolved by other agencies than the friction of the revolving grinding-disk (J against the tiles carried by the said frames, and they may be constructed to carry two or more tiles at a time, for the purpose of facing or squarin Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination, with the rotary grinding or rubbing disk O, of the frame D, consisting of the horizontal hubs E E, vertical rods F F, adjustable shafts F F, having universal joints 0, and facingholders G, provided with pinsc'l, substantially as herein shown and described, whereby tiles may have their faces made smooth and level, as set forth. 7

2. In a tile-facing machine, the holder G, provided with sharp studs or pins (1, substantially as herein shown and described, whereby the tiles are prevented from slipping, as set forth.

3. The combination, with the rotary grinding or rubbing disk G, of the frame 0, provided with recessed sides m, cross-bars 0, and setscrews 11, substantially as herein shown and described, whereby tiles may have their edges made smooth and square, as set forth.

'4. The combination, with the shafts F, holders G, and levers H H, of the lever K, substantially as herein shown and described, whereby said levers H H may be operated, as set forth.

5. In a tile facing and squaring machine, the combination, with the levers H H K, of the rod K and treadles K substantially as herein shown and described, whereby the said levers may be operated, as set forth.

CHARLES FISH POWER-S. Y Vitnesses:

FLETCHER D. Pnoo'ron, HENRY B. W OODBURY. 

